Finding the Third Proportional to 51,622.50 and 78,914.75

Step by Step Solution

1. Step 1: Write the proportion equation
   51,622.50 : 78,914.75 = 78,914.75 : x
2. Step 2: Convert to fraction form
   51,622.50/78,914.75 = 78,914.75/x
3. Step 3: Cross multiply
   51,622.50x = 78,914.75 × 78,914.75
4. Step 4: Simplify right side
   51,622.50x = 6,227,537,767.56
5. Step 5: Solve for x
   x = 6,227,537,767.56/51,622.50
6. Step 6: Final answer
   x = 120,636.11